US4418729A - Shuttleless loom weft detaining device - Google Patents

Shuttleless loom weft detaining device Download PDF

Info

Publication number
US4418729A
US4418729A US06/326,568 US32656881A US4418729A US 4418729 A US4418729 A US 4418729A US 32656881 A US32656881 A US 32656881A US 4418729 A US4418729 A US 4418729A
Authority
US
United States
Prior art keywords
weft
section
drum
weft yarn
frustoconical
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Fee Related
Application number
US06/326,568
Other languages
English (en)
Inventor
Yoshiharu Chiba
Hidetsugu Umezawa
Takao Sakabe
Ryuji Arai
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Nissan Motor Co Ltd
Original Assignee
Nissan Motor Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Nissan Motor Co Ltd filed Critical Nissan Motor Co Ltd
Assigned to NISSAN MOTOR CO., LTD. reassignment NISSAN MOTOR CO., LTD. ASSIGNMENT OF ASSIGNORS INTEREST. Assignors: ARAI, RYUJI, CHIBA, YOSHIHARU, SAKABE, TAKAO, UMEZAWA, HIDETSUGU
Application granted granted Critical
Publication of US4418729A publication Critical patent/US4418729A/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Images

Classifications

    • D—TEXTILES; PAPER
    • D03—WEAVING
    • D03D—WOVEN FABRICS; METHODS OF WEAVING; LOOMS
    • D03D47/00—Looms in which bulk supply of weft does not pass through shed, e.g. shuttleless looms, gripper shuttle looms, dummy shuttle looms
    • D03D47/34—Handling the weft between bulk storage and weft-inserting means
    • D03D47/36—Measuring and cutting the weft
    • D—TEXTILES; PAPER
    • D03—WEAVING
    • D03D—WOVEN FABRICS; METHODS OF WEAVING; LOOMS
    • D03D47/00—Looms in which bulk supply of weft does not pass through shed, e.g. shuttleless looms, gripper shuttle looms, dummy shuttle looms
    • D03D47/34—Handling the weft between bulk storage and weft-inserting means
    • D03D47/36—Measuring and cutting the weft
    • D03D47/361—Drum-type weft feeding devices
    • D03D47/362—Drum-type weft feeding devices with yarn retaining devices, e.g. stopping pins
    • D—TEXTILES; PAPER
    • D03—WEAVING
    • D03D—WOVEN FABRICS; METHODS OF WEAVING; LOOMS
    • D03D47/00—Looms in which bulk supply of weft does not pass through shed, e.g. shuttleless looms, gripper shuttle looms, dummy shuttle looms
    • D03D47/34—Handling the weft between bulk storage and weft-inserting means
    • D03D47/36—Measuring and cutting the weft
    • D03D47/361—Drum-type weft feeding devices
    • D03D47/362—Drum-type weft feeding devices with yarn retaining devices, e.g. stopping pins
    • D03D47/363—Construction or control of the yarn retaining devices

Definitions

  • This invention relates to an improvement in a weft detaining device for detaining a predetermined length of a weft yarn prior to weft picking by weft inserting means.
  • a spun yarn which is lower in tensile strength has come into use particularly in air jet type shuttleless looms. Accordingly, it is desirable to control the weft yarn tension because a slight variation in tension breaks the weft yarn.
  • Some conventional devices detain or store the weft yarn in a length of about 2/3 of that required for each weft picking. The weft yarn tension abruptly increases when the yarn is changed from its free flight period, in which the detained weft yarn is picked, to the measuring flight period, in which the weft picking continues measuring the length of the weft yarn.
  • a ring having an annular brush is disposed around an end section at the weft inserting nozzle side of a drum having a conical section and a cylindrical section. This drum functions to wind the weft yarn thereon in the length required for each weft picking.
  • the length of detained weft yarn is maintained constant by optically sensing the amount on the drum and rotating the drum accordingly.
  • the annular brush serves as a stop for the weft yarn at the end section at the weft inserting nozzle side, and functions to prevent the weft yarn wound on the drum from coming off.
  • weft picking is accomplished with the weft yarn which is completely detained on the drum and therefore an abrupt variation in weft yarn tension does not occur during weft picking.
  • the weft yarn always receives resistance to its movement since it is drawn off from the drum, contacting with the annular brush.
  • a weft detaining device of a shuttleless loom comprises a drum around which a weft yarn is wound prior to its introduction to a weft inserting nozzle.
  • the drum is provided with a frustoconical section tapered generally toward the weft inserting nozzle, a cylindrical section integral with the frustoconical section, a projecting section which is radially and outwardly projecting over the radial level of the cylindrical section, the projecting section being spaced from the frustoconical section in the axial direction of the drum, and a connecting section integral with the projecting section to connect the radial top level of the projecting section with the radial level of the cylindrical section, the connecting section being located to leave the cylindrical section between it and the frustoconical section.
  • the weft detaining device is so arranged as to catch the weft yarn in association with the drum peripheral surface to detain a predetermined length of the weft yarn on the drum peripheral surface prior to a weft picking through the weft inserting nozzle.
  • the weft yarn can be detained generally at the same location on the drum peripheral surface every operational cycle of the loom, thereby maintaining generally constant the drawing-off resistance of the weft yarn from the weft detaining device every weft picking. This results in effective and stable weft pickings, overcoming the drawbacks encountered in prior art weft detaining devices.
  • FIG. 1 is a front elevation of an essential part of a shuttleless loom equipped with a preferred embodiment of a weft detaining device according to the present invention
  • FIG. 2 is a vertical sectional view of the weft detaining device of FIG. 1;
  • FIG. 3 is a side elevation of the weft detaining device of FIG. 1;
  • FIG. 4 is an enlarged fragmentary front view of a drum of the weft detaining device of FIG. 1;
  • FIG. 5 is an enlarged fragmentary section of a drum of another embodiment of the weft detaining device according to the present invention.
  • FIG. 6 is an enlarged fragmentary side view of the drum of FIG. 5.
  • FIGS. 1 to 4 of the drawings there is shown a preferred embodiment of a weft detaining device of a shuttleless loom, in accordance with the present invention.
  • the shuttleless loom comprises a weft inserting air injection nozzle 2 which is supported by a nozzle holder 3 which is fixed on a frame 1 of the shuttleless loom.
  • a weft guide 4 is supported by a stay 5 which is secured to the nozzle holder 3, and located rearward of the nozzle 2 so that the axis thereof is in alignment with that of the nozzle 2.
  • a weft yarn 6 from the weft detaining device discussed hereinafter is introduced into the nozzle 2 through the weft guide 4, and is then picked or inserted into a warp shed (not shown) by means of air injected from the nozzle.
  • a bracket 9 having a bearing section 9a is secured to the frame 1 of the shuttleless loom through a horizontally disposed bracket 8 which is directly secured to the frame of the loom by bolts 7, as shown in FIG. 1.
  • the bracket 9 is connected at its bottom part to the bracket 8 with bolts 10 and nuts so that the axis of the bearing section 9a is in alignment with that of the weft guide 4.
  • a shaft 12 is rotatably supported at its central section within the bearing section 9a by a ball bearings 11.
  • a toothed pulley 13 is fixedly mounted on a rear section of the rotatable shaft 12.
  • a toothed belt (not shown) is provided to connect the pulley 13 and a drive pulley (not shown) to rotate the rotatable shaft 12 in timed relation to the operational cycle of the loom. In this instance, the rotatable shaft 12 rotates four times per each operational cycle of the loom.
  • a support member 16 is rotatably mounted through ball bearings 15 on a front section of the rotatable shaft 12 so as to be rotatable relative to the shaft 12.
  • a drum 18 forming part of the weft detaining device is fixedly supported by the support member 16 by means of bolts 17.
  • a magnet 19A is securely disposed at a position of the inside surface of the drum 18. This magnet 19A is opposite to a magnet 19B securely supported at the tip section of a support 8a mounted on the bracket 8, which magnet 19A is located outside of the drum 18.
  • the magnet 19B is spaced apart from the outer peripheral surface of the drum 18, but a magnetic attraction is generated between the two magnets 19A, 19B so that the drum 18 is maintained at a stationary state regardless of the rotation of the rotatable shaft 12.
  • the drum 18 is formed with an outer peripheral surface which comprises a wider frustoconical section 18a connecting to the rear end R of the drum and whose diameter gradually decreases toward the weft inserting nozzle 2, i.e. in the direction from the rear end R toward the front end F of the drum 18.
  • a smaller-diameter cylindrical section 18b of the drum outer peripheral surface integrally connects at one end thereof with the frustoconical section 18a at the smallest diameter part.
  • the diameter of the cylindrical section 18b is so set that the length of the weft yarn 6 wound four times around the cylindrical section 18b corresponds to the weft yarn length required for each pick.
  • the smaller-diameter cylindrical section 18b is formed to have a relatively small width H as indicated in FIG. 4.
  • a narrower frustoconical section 18c of the drum outer peripheral surface is connected at its smallest diameter part with the other end of the smaller-diameter cylindrical section 18b.
  • the narrower frustoconical section 18c gradually increases in its diameter toward the weft inserting nozzle 2, i.e. in the direction from the rear end R to the front end F of the drum 18.
  • a larger-diameter cylindrical section 18d of the drum outer peripheral surface is larger in diameter than the smaller-diameter cylindrical section 18b and is integrally connected at its one end with the largest diameter part of the narrower frustoconical section 18c.
  • the rotatable shaft 12 is formed along the axis thereof with an elongate weft introduction hole 20 which opens to the rear end of the rotatable shaft 12. Additionally, a weft drawing-out hole 21 is formed connecting with the weft introduction hole 20 and opening to the peripheral surface of the rotatable shaft 12. Securely attached on the peripheral surface of the rotatable shaft 12 by means of a lock nut 22 is a weft winding-guide member 23 by which the weft yarn 6 is guided onto the frustoconical section 18a of the drum 18.
  • the weft winding guide member 23 is bent to approach the surface of the frustoconical section 18a of the drum 18 and is formed at its free end section with a weft guide opening 24 through which the weft yarn 6 passes. Accordingly, the weft yarn 6 drawn from a weft supply source or bobbin (not shown) is introduced into the weft introduction hole 20 and the weft drawing-out hole 21 after being passed through an air injection nozzle 27 for weft yarn introduction.
  • the nozzle 27 is supported by a stay 26 fixed onto the bracket 9 and is located rearward of the rotatable shaft 12 so that the axes of the nozzle 27 and the shaft 12 are aligned with each other.
  • the weft yarn 6 is wound around the wider frustoconical section 18a and the smaller-diameter cylindrical section 18b of the drum 18, on which the weft yarn 6 is caught by at least one of hook levers 31 and 32 which will be discussed hereinafter. Then, the weft yarn 6 is passed through the weft guide 4.
  • the hook levers 31 and 32 are pivotally and rotatably mounted on a fixed shaft 35 and are formed at their end sections with hook sections 31a and 32a, respectively.
  • the hook sections 31a and 32a are located to be able to be inserted respectively into holes 33 and 34 which are respectively located on the frustoconical section 18a in the vicinity of the border with the cylindrical section 18b and on the cylindrical section 18d.
  • the holes 33 and 34 pass through or pierce the wall of the drum 18.
  • the hook levers 31, 32 are so arranged as to be swingable clockwise and that their hook sections 31a, 32a are inserted into or withdrawn from the holes 33, 34 at predetermined timings, respectively, in the operational cycle of the loom.
  • the hole 34 is formed appreciably forward of the hole 33 in the direction at which the weft yarn 6 is wound around the drum, i.e. rearward of the hole 33 in the direction at which the weft yarn 6 is drawn off on the drum.
  • the hook section 32a of the hook lever 32 is arranged to project to a position which is appreciably forward relative to a position where the hook section 31a of the hook lever 31 projects, in the direction at which the weft yarn 6 is wound around the drum.
  • the rotatable shaft 12 rotates four times per each operational cycle of the loom; however the drum 18 cannot rotate and is maintained in a stationary state by virtue of the magnetic attraction generated between the magnets 19A, 19B. Accordingly, with the rotation of the rotatable shaft 12, the weft winding guide member 23 rotates around the periphery of the drum 18, so that the weft yarn 6 is wound around the wider frustoconical section 18a of the drum 18. Then, the weft yarn 6 on the wider frustoconical section 18a slides along the slope of wider frustoconical section 18a by the tension thereof and moves to the smaller-diameter cylindrical section 18b, pushing forward the wound weft yarn located in front thereof.
  • the weft yarn 6 is wound approximately two times around the frustoconical section 18a. Then, the hook section 32a of the hook lever 32 is again inserted into the hole 34 of the drum 18. Subsequently, the hook section 31a of the hook lever 31 is withdrawn from the hole 33 of the drum 18. As a result, the weft yarn 6 which has been caught by the hook section 31a slides down along the slope of the frustoconical section 18a and moves onto the smaller-diameter cylindrical section 18b to be caught by the hook section 32a.
  • the behavior of the weft yarn 6 wound around the drum 18 will be considered. It will be understood that the weft yarn wound around the wider frustoconical section 18a slides down along the slope of the frustoconical section 18a to gradually move to the smaller-diameter cylindrical section 18b. However, the weft yarn does not slide down in the vicinity of the hook section 31a in the state where the weft yarn is caught by the hook section 31a of the hook lever 31. As described above, when the catching of the weft yarn 6 is taken over from the hook section 31a by the hook section 32a, the weft yarn 6 wound around the frustoconical section 18a slides down onto the smaller-diameter cylindrical section 18b.
  • the tension of the weft yarn 6 momentarily decreases and therefore the weft yarn 6 tends to roll over toward the narrow frustoconical section (18c) side or the wider frustoconical section (18a) side by the rolling-over force of the weft yarn 6 due to the applied twist or the cancelled twist caused during the rolling-down of the weft yarn 6 along the slope of the wider frustoconical section 18a.
  • the weft yarn 6 can be prevented from such rolling-over movement because the weft yarn is stably kept on the smaller-diameter cylindrical section 18b which is located between the opposite slope surfaces of the wider and narrower frustoconical sections 18a, 18c.
  • the weft yarn 6 is stably detained on the smaller-diameter cylindrical section 18b, which makes generally constant the drawing-off resistance of the weft yarn applied during the weft picking, thereby effectively achieving weft picking.
  • the weft yarn will be twisted during the rolling-over thereof along the slope of the frustoconical section 18a, which will cancel or increase the inherent twist of the weft yarn.
  • weft yarn twist applied by its rolling-over movement unavoidably varies depending on the kinds of yarns (the degree and the direction of the twist).
  • the twist varies depending on the parts of the yarn, so that the twist of the weft yarn is not constant throughout its overall length. Therefore, the weft yarn may irregularly move on the drum and is not detained on the same location on the drum.
  • the drawing-off resistance of the weft yarn is lower in cases where the weft yarn is detained in the vicinity of the hook section 32a of the hook section 32, whereas the drawing-off resistance of the weft yarn is higher in cases where the weft yarn is detained in the vicinity of the hook section 31a of the hook lever 31.
  • such different weft drawing-off resistances are disadvantageous for achieving effective weft pickings.
  • the higher drawing-off resistance results in shortpicks of the weft yarn.
  • the weft detaining device according to the present invention is very advantageous for achieving effective weft pickings.
  • FIGS. 5 and 6 illustrate another embodiment of the weft detaining device according to the present invention.
  • the drum 18 is formed with the frustoconical section 18a, and a cylindrical section C which is integral with the smallest diameter part of the frustoconical section 18a.
  • the cylindrical section C extends in the axial direction of the drum to the front end face F thereof.
  • the drum 18 is formed on its outer surface with a plurality of radially outward grooves 40 each of which extends in the axial direction of the drum 18.
  • the grooves 40 are formed in parallel at suitable intervals along the periphery of the drum outer surface. As shown, each groove 40 extends from the front to rear end faces F, R of the drum 18.
  • a plate member 41 is disposed in each groove 40 in such a manner that its lower section 41a is located below the level of the peripheral surface of the cylindrical section C, and its upper section 41b is located over the peripheral surface level of the cylindrical section C.
  • the upper section 41b is formed with an inclined edge portion E 1 which extends from a top edge portion E 2 and reaches the level of the peripheral surface of the cylindrical section C so as to define the narrower cylindrical section 18b of the width H on the cylindrical section C between the frustoconical section 18a and the inclined edge portion E 1 as viewed from the direction perpendicular to a vertical plane containing the axis of the drum, as shown in FIG. 5.
  • the inclined edge portion E 1 and the top edge portion E 2 function the same as the narrower frustoconical section 18c and the larger-diameter cylindrical section 18d of the drum 18 in the embodiment of FIGS. 1 to 4.
  • the plate member 41 is integrally formed at its lower section with a stud-bolt 42 which is vertically disposed within an elongate hole 43 formed through the drum cylindrical wall at a section below the groove 40.
  • the bolt 42 is secured in position by means of a nut 44.
  • the detaining location of the weft yarn on the drum surface is always maintained generally constant and stable. This can keep the weft drawing-off resistance generally constant at every weft picking, thereby achieving effective weft pickings.

Landscapes

  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Looms (AREA)
US06/326,568 1980-12-11 1981-12-02 Shuttleless loom weft detaining device Expired - Fee Related US4418729A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP55-173748 1980-12-11
JP55173748A JPS57101040A (en) 1980-12-11 1980-12-11 Weft yarn storing apparatus of shuttleless loom

Publications (1)

Publication Number Publication Date
US4418729A true US4418729A (en) 1983-12-06

Family

ID=15966394

Family Applications (1)

Application Number Title Priority Date Filing Date
US06/326,568 Expired - Fee Related US4418729A (en) 1980-12-11 1981-12-02 Shuttleless loom weft detaining device

Country Status (6)

Country Link
US (1) US4418729A (US08063081-20111122-C00044.png)
EP (1) EP0054247B1 (US08063081-20111122-C00044.png)
JP (1) JPS57101040A (US08063081-20111122-C00044.png)
KR (1) KR850001115B1 (US08063081-20111122-C00044.png)
CS (1) CS253566B2 (US08063081-20111122-C00044.png)
DE (1) DE3170894D1 (US08063081-20111122-C00044.png)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4516611A (en) * 1981-11-25 1985-05-14 Kabushiki Kaisha Toyota Chuo Kenkyusho Weft yarn storage unit for jet looms
US5294067A (en) * 1989-11-03 1994-03-15 Iro Ab Method of preventing rotational vibrations in a thread storage and feed device and a thread storage and feed device
US20030000593A1 (en) * 2001-06-14 2003-01-02 L.G.L. Electronics S.P.A. Device for smoothening the unwinding from the cylinder of the loops of yarn forming the weft reserve, in weft suppliers for fluid jet looms
WO2004044295A2 (de) * 2002-11-12 2004-05-27 Iropa Ag Liefergerät

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS59482U (ja) * 1982-06-25 1984-01-05 津田駒工業株式会社 流体噴射式織機用緯糸貯留装置
KR900008679B1 (ko) * 1982-06-25 1990-11-26 쓰다고마고교 가부시끼가이샤 유체 분사식 직기용 위사 저류장치
JPS599243A (ja) * 1982-07-02 1984-01-18 津田駒工業株式会社 流体噴射式織機における緯糸測長貯留装置
JPS5991387U (ja) * 1982-12-13 1984-06-21 株式会社豊田自動織機製作所 織機における緯糸測長装置
JPS59125946A (ja) * 1982-12-27 1984-07-20 津田駒工業株式会社 流体噴射式織機用多色自由交換型緯糸貯留装置
US4550754A (en) * 1983-06-29 1985-11-05 Nissan Motor Co., Ltd. Weft picking system of loom and method for operating same
GB8327676D0 (en) * 1983-10-15 1983-11-16 Bonas Machine Co Yarn metering device
CS249155B1 (en) * 1984-08-23 1987-03-12 Vladimir Svaty Method and device for weft thread picking
KR101960631B1 (ko) * 2018-02-06 2019-03-20 영남대학교 산학협력단 직물 제직용 대직경 위사 패키지 및 이를 감는 권사기

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3370618A (en) * 1964-11-21 1968-02-27 Elitex Zavody Textilniho Thread dispensing apparatus
US3761031A (en) * 1970-05-14 1973-09-25 Sulzer Ag Storage apparatus for filamentary material

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH439161A (de) * 1965-06-25 1967-06-30 Sulzer Ag Webmaschine mit Schussfadenzwischenspeicher
FR1478294A (fr) * 1966-05-04 1967-04-21 Sulzer Ag Métier à tisser comportant un accumulateur intermédiaire du fil de trame
CH472518A (de) * 1966-12-13 1969-05-15 Sulzer Ag Webmaschine mit Schussfaden-Zwischenspeicher
FR1547158A (fr) * 1966-12-13 1968-11-22 Sulzer Ag Métier à tisser avec accumulateur intermédiaire de fil de trame
FR1547150A (fr) * 1966-12-20 1968-11-22 D A M S P A Procédé et appareillage pour la distillation d'un liquide et notamment pour la production d'eau douce à partir d'eau de mer
DE1966159B2 (de) * 1968-10-14 1972-09-28 Fadenspeicher- und -liefervorrichtung fuer textilmaschinen
DE1929485A1 (de) * 1969-06-11 1970-12-17 Sobrevin Liefervorrichtung fuer Faeden an Webmaschinen,Strickmaschinen od.dgl.
JPS5626038A (en) * 1979-08-10 1981-03-13 Nissan Motor Weft yarn storage apparatus of shuttleless loom

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3370618A (en) * 1964-11-21 1968-02-27 Elitex Zavody Textilniho Thread dispensing apparatus
US3761031A (en) * 1970-05-14 1973-09-25 Sulzer Ag Storage apparatus for filamentary material

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4516611A (en) * 1981-11-25 1985-05-14 Kabushiki Kaisha Toyota Chuo Kenkyusho Weft yarn storage unit for jet looms
US5294067A (en) * 1989-11-03 1994-03-15 Iro Ab Method of preventing rotational vibrations in a thread storage and feed device and a thread storage and feed device
US20030000593A1 (en) * 2001-06-14 2003-01-02 L.G.L. Electronics S.P.A. Device for smoothening the unwinding from the cylinder of the loops of yarn forming the weft reserve, in weft suppliers for fluid jet looms
US6739357B2 (en) * 2001-06-14 2004-05-25 L.G.L. Electronics S.P.A. Device for smoothening the unwinding from the cylinder of the loops of yarn forming the weft reserve, in weft suppliers for fluid jet looms
WO2004044295A2 (de) * 2002-11-12 2004-05-27 Iropa Ag Liefergerät
WO2004044295A3 (de) * 2002-11-12 2004-07-15 Iropa Ag Liefergerät

Also Published As

Publication number Publication date
EP0054247B1 (en) 1985-06-05
KR830007917A (ko) 1983-11-07
JPH0144812B2 (US08063081-20111122-C00044.png) 1989-09-29
EP0054247A1 (en) 1982-06-23
DE3170894D1 (en) 1985-07-11
KR850001115B1 (ko) 1985-08-03
JPS57101040A (en) 1982-06-23
CS253566B2 (en) 1987-11-12

Similar Documents

Publication Publication Date Title
US4418729A (en) Shuttleless loom weft detaining device
US3411548A (en) Weft thread supply apparatus for gripper shuttle looms
US3131729A (en) Weft thread supply system for looms for weaving
EP0051811B1 (en) Weft detaining device for shuttleless loom
US4378821A (en) Weft detaining device of shuttleless loom
US4799517A (en) Weft yarn store for a loom
KR100516487B1 (ko) 직조 방적사를 삽입하는 방법 및, 방적사 공급 장치
CS201549B2 (en) Thread supply device,especially for knitting frames
US4766937A (en) Weft storage device
US2710631A (en) Selvage thread feeding means for looms
US5103876A (en) Rotatable thread catcher for weft metering device
KR20000071170A (ko) 위사용 원사 이송량 측정 장치
US4091512A (en) Deweaving apparatus for textile tapes
CS215009B2 (en) Facility for accumulation of the fibrous material
US3604472A (en) Filling storage device for looms
JPH03206151A (ja) 糸状材料を織機に給糸する装置
EP0580267B1 (en) A device for feeding a periodically operating yarn-consuming device
US3776282A (en) Method of and apparatus for metering and storing weft yarn for intermittent insertion into the shed of shuttleless looms
Vangheluwe Air-jet weft insertion
JPS6241986Y2 (US08063081-20111122-C00044.png)
KR840000919B1 (ko) 북 없는 직기의 위사저류장치
US4784191A (en) Device for storing a weft yarn for inserting in a jet loom
CS199731B2 (en) Shuttleless weaving looms
US3529637A (en) Catch cord twister for shuttleless looms
JPS6024212B2 (ja) 無杼織機のドラム式緯糸貯留装置

Legal Events

Date Code Title Description
AS Assignment

Owner name: NISSAN MOTOR CO., LTD., NO. 2, TAKARA-CHO, KANAGAW

Free format text: ASSIGNMENT OF ASSIGNORS INTEREST.;ASSIGNORS:CHIBA, YOSHIHARU;UMEZAWA, HIDETSUGU;SAKABE, TAKAO;AND OTHERS;REEL/FRAME:003959/0646

Effective date: 19811217

FEPP Fee payment procedure

Free format text: PAYOR NUMBER ASSIGNED (ORIGINAL EVENT CODE: ASPN); ENTITY STATUS OF PATENT OWNER: LARGE ENTITY

MAFP Maintenance fee payment

Free format text: PAYMENT OF MAINTENANCE FEE, 4TH YEAR, PL 96-517 (ORIGINAL EVENT CODE: M170); ENTITY STATUS OF PATENT OWNER: LARGE ENTITY

Year of fee payment: 4

FEPP Fee payment procedure

Free format text: MAINTENANCE FEE REMINDER MAILED (ORIGINAL EVENT CODE: REM.); ENTITY STATUS OF PATENT OWNER: LARGE ENTITY

LAPS Lapse for failure to pay maintenance fees
FP Lapsed due to failure to pay maintenance fee

Effective date: 19911208

STCH Information on status: patent discontinuation

Free format text: PATENT EXPIRED DUE TO NONPAYMENT OF MAINTENANCE FEES UNDER 37 CFR 1.362